graphing crossword puzzle

4. plane coordinate plane by using the horizontal and vertical distances from the two reference axes.
6. each of the four sections of the coordinate plane.
8. the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates.
11. the point where a line crosses the x-axis
14. (of a variable quantity) having a constant ratio to another quantity.
15. slope two variables are positively related
16. To draw on a graph or map.

1. slope a line that is trending downward from left to right.
2. a function that has either one or two variables without exponents
3. the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates.
5. is used to tell exact location in space.
7. An expression in mathematics which does not have meaning and so which is not assigned an interpretation
9. a line that is used to make or mark measurements.
10. a line graph where you put dots
12. a starting point on a grid that's the point (0,0), where the x-axis and y-axis intercept.
13. line is a number that describes both the direction and the steepness of the line.